Wedge-adjusting device for connecting-rod heads.



PATENTEJD MAY 28, .1907;

I J. P. HENRY. y 4

WEDGE ADJUSTING DEVIGB FOR CONNECTING ROD HEADS.

APPLICATION FILED DBO. 22, 190B.

rye. 4.

was.

Witnesses Inventor By 1M5 Attorney UNirE a STATES PATENT oFFioE.

JOHN P. HENRY, OF FRANKLIN, PENNSYLVANIA.

WEDGE-ADJUSTING DEVICE FOR CONNECTING-ROD HEADS.

Patented May 28, 1907.

To a, whom it may concern.-

Be it known that I, JOHN P. HENRY, a citi- Zen of the United States,residing at Franklin, in the county of Venango and State ofPennsylvania, have invented certain new and useful Improvements inWedge-Adjusting Devices for Connecting-Rod Heads, of which the followingis a specification, reference being had therein to the accompanyingdrawmgs.

My invention relates to improvements in wedge-adjusting devices forconnecting-rod heads, the object, construction and operation of which isherein fully set forth, reference being had to the accompanying drawingswhich form a part hereof and in which:

Figure 1 is a side elevation of a connectingrod head embodying .myimprovements,a portion of the front or outer brass being broken away toexpose the wedge to view. Fig. 2 is an end elevation of the same. Figs.3, 4, 5 and 6 are details.

The same figures indicate identical parts in the several views.

, The objectof my invention is to provide a cheap, efficient and easilymanipulated Wedge-adjusting device for connecting-rod heads, theconstruction of which is substan tially as follows By an inspection ofthe drawings,especially Fig. 1.-it will be noted that, in generalappearance and construction, a connectingrod head embodying myimprovements, does not depart materially from those in common use,except in the means for adjusting the wedge, and that of securing saidadjustment the brasses 1 and 2 are of a form commonly used.

My improvement consists in forming in the front face of the wedge 3 (theface opposite to the beveled face) a vertically-disposed groove, thewall upon one side of said groove being formed into a rack 4. In saidgroove is seated a pinion 5,-Figs. 3 and 4which meshes with the teeth ofthe rack in said wedge 3. Pinion 5 is provided with an arbor or stem 6which passes revolubly through the front strap or outer wall 7 of thehousing for the brasses, the projecting end of said stem I beingscrew-threaded for the reception of a lock-nut 8. The extremity of saidstem is formed into a suitable tang 9 to facilitate turning the same.The inner face of the front strap or wall 7 is preferably counterboredas a seat for' a portion of pinion 6. When the wedge 3 is to beadjusted, the locknut 8 is released or loosened, pinion 5 is turned bymeans of its stem 6, and the wedge 3 is thus raised or lowered asrequired, and

is tightened, which looks pinion 5 in position and the adjustment isthus firmly secured and maintained until said nut 8 is again manuallyreleased for thepurposes of re-adjustment.

Having thus described my invention, what I claim and desire to secure byLetters Patent 1s: 7

1. In a wedge-adjusting device for connecting-rod heads, the combinationwith the brasses in said head, one of which brasses is suitably beveled,of a wedge having a rack formed therein, and a pinion re volu'blv saidrack for the purpose set forth, there being means on said pinion wherebyit may be revolved, and means for locking the same.

2. In a wedge-adjusting device for connecting-rod heads, the combinationwith the brass-retaining strap or housing, of a front or outside brass,beveled upon its outer face, a wedge positioned between and bearingagainst the front wall of said strap or housing and the beveled face ofsaid brass, there being a vertically-disposed slot in the outer face ofsaid wedge and a rack located at one side of said slot, a pinion seatedin said slot and meshing with said rack there being a stem upon saidpinion, extending revolubly through said front wall of said housing, forrevolving said pinion, and means for locking the same.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN P. HENRY.

Witnesses:

R. O. MOMULLEN, JonN CLAIR.

when the proper adjustment is secured, nut 8 mounted in said headadapted to meshwith.

